Vision-protecting shield



Feb. 12, 1929.

o. H. REBENSCHVIED ET Al.

VISION PROTBCTIXG SHIELD Filed Oct. 20, 1925 mmvroxg: D5831" H REEI enschled- B Charles EME B Patented Feb. 12, 1929.

NlTE STATEfi 1,701,958 ATET OFFICE.

OSCAR H. BEBENSGHIED, OF KANSAS CITY, KANSAS, AND CHARLES G. MEE, 033 LOS ANGELES, CALIFORNIA; SAID MEE ASSIG'NTOR TO SAID EEIBENSCHIED.

VISION-PROTECTING SHIELD.

This invention relates to a vision protecting device which may be attached to the sliding window of a locomotive cab or to the frame of the cab adjacent the window and maybe used by engineers, firemen and others who are required to keep constant watch ahead of a train.

This particular invention relates to devices such that shown and described in our U. S. Letters Patent Number 1,567,189, issued December 29, 1925.

It is the primary object of this invention to provide improvements and refinements of construction over those shown in the above mentioned patent.

One of the objects of this invention is to provide brackets for attaching the vision protecting deviceto either the window or cab which will permit of closing or disposing the shield in a plane parallel to the plane of the member which is supporting the same when the engine is being driven into the round house or when passing places on the line where clearance is not great enough to allow its passage.

Another object of this invention is the provision of a novel and simple means for retaining the vision protecting device in either the open or closed position, and which permits of turning the shield to either position without the manipulation of set screws, complicated latches or the like.

An even further object of this invention is the provision of a resilient means for maintaining the shield in proper place.

in the drawing:

Figure 1 is a perspective view oi? a vision protector made in accordance with this invention and shown in an open position.

Fig. 2 is a front broken View of the same.

3 is an enlarged horizontal cross section of the device, and,

Fig. 4 is a detailed View of the pin and notch construction.

In the drawing, similar reference characters refer to like parts throughout the several views, and the numeral 5 designates the cab window of a locomotive or if preferred. the side member or the cab adjacent the window. Itis matter of preference on the part of the user whether this device is attached to the sliding window or to the cab direct. The transparent shield 6 may be the well known plate glass of any desired thickness which is ground at its exposed edges and rounded at the corners as shown. Channel 7 disposed at each end of transparent member 6 should be lined with rubber 8 or other suitable resilient material which will prevent the glass from breaking when ex iansion and contraction occurs due to the change of temperature. Channels 7 aresgmced apart and heldin engagement with transparent member 6 by a rod or similar member 9 which may be screwthreaded at its ends and which passes through lug 10 formed integrally with each channel 7. On either side of this lug 10 should be positioned nuts 11 which securely hold channel 7 in place. it is to be noticed that lug 10 on eachchannelTis very close to one end thereof, which permits rod 9 to extend along transparent member 6 very close to one edge thereof. In constructing the device this is an important factor because of the fact that an unobstructed vision must be afi'orded when using this device or the same will be rendered absolutely useless.

To mount the vision protecting device in the desired place, a pair of brackets 12 aiiixcd to member 5 through any suitable means such as bolts 13 may be employed. It the device is mounted on the sliding window of the cab these bolts 13 should be couter-sunk as shown in Fig. 3 to allow the passage ofthe window to the open and closed position.

With most types of locomotives it is known that the cab thereof is so wide that its entrance into the round house permits a clearance on either side of but approximately six inches. lft obvious that this vision pro-- tee-ting" levice could not he used on either side oi locomotive cab it it were attached so that it could not be swung around to what may be termed the closed position shown in dotted lines of Fig. 3. lVhen the device is in this position i is only projecting some inch and one-half beyond the side of the cab.

To effectively carry out this feature or" the invention, brackets 12 have been made to pivotally engage rod 9 and have been constructed to provide eii'ective means for retaining the shield in either the open or closed position. deferring to this particular structure, it will be plainly seen in Fig. 4 that notches let are disposed at a ninety degree angleand are cut in the upper side of each bracket 19- to permit the rod to describe a onequarter turn when the device is moved from one extreme position to the other. A pin 15 rigidly carried by red 9 rests in one of these pin 15, the notches should'each be'formedto lower channel 7. V st-ant downward pressure longitudinally of present an incline 16 leading upwardly from the bottom of each notch 14 to the top of bracket 12 as shown in Fig. 4. A helical spring 17 or other resilient means should be interposed between the lower side of lower bracket12 and the lug engaging nut 11 of This spring keepsa con rod 9 and, thereby, maintains each pin 15 in engagement with either notch 14 depending upon whether the shield is in the open or closed position. The abrupt wall of each notch 14 limits the turning movementof rod 9 and the inclined portions 16 of each notch 141 permits the rod to be turned without eX- erting a lifting force. It has been found that the shield will be effectively retained in the open or closed position and that its operation is smooth; 7 3 i If desired afresilient strip 18 "may be'attached to member 5 adjacent the edge of transparent member 6 which strikes member 5 when the device is in the open position.

Thismember 18 keeps rain and wind from passmg between member 5 and the edge of member 6.

Itisunderstood that many changes and modifications maybe made without departing from the spirit of the invention or scope of the appended claims. j x

W hat we claim and desire to secure by Letters Patent is:

1. In a-vision protecting shield of the character described, having a transparentmemher, a support for said member including a rod, a'pair of brackets rotatably supporting said rod,each of said brackets having a' pair of notches adapted to receive a pin extending laterally of said rod, said notches being disposed to limit the movement of the rod to a one-quarter turnand-each provided with an abrupt vertical side adapted to strikesaid pin when at the end ofeach quarter-turn, the

other and adjoining sides of said notches being inclined to impart vertical movement'to the pin and rod and to guide the pin from one to the other as the rod is rotated. a

2. In a vision protecting shield of the char: acter described having a transparent memher, a support for said member including a rod engaged by a plurality of brackets, a lateral projection carried by said rod adjacent each bracket, movement limiting notches formed by each bracket adapted to receive the adjacent projection and a spring yieldably maintaining said projection inengagement with one of said notches when said shield is in the open or closed position, said notches being disposed at 90 angle and adapted to permit movement of said projection from one to the other only and each having an abrupt wall to preclude movement of saidprojection through a path greater than one-fourth turn.v

3. In a vision'protecting shield of the character described having a' transparent member,

a support for said member including a rod engaged by a plurality of brackets, a helical spring wound around said rod, a laterally projecting pin carried bysaid'rod adjacent each bracket, each bracket having movement limiting notches adapted to receive the adjacent pin, said notches having means for guiding said pin from one notch to the other comprising an inclined surface over which said pin is adapted to ride to lift itself against the exerted force of said helical spring wound urge said pin against said inclined surface and toa fixed engagement with said notches,

around said rod and mounted to constantly 

